Improvement in lanterns



1. H. niv/vm.

Lantern.

Patented Nov. Y 4, 1862..

UNITED STATES PATENT` Ormes.

JOHN H. IRWIN, OF CHICAGO, ILLNOIS.

IMPROVEMENT lN LANTERNS.

Specication forming part of Letters Patent No. 36,841, dated November 4, 1862.

T 0 all whom t may con/cern..-

Be it known that I, JOHN H. IRWIN, of Chicago, in the county of Cook and State of Illinois, have invented a new and improved lantern for burning `coal-oil and other` similar hydro carbous which require an excess of oxygen to support proper combustion for illuminating purposes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making apart of this specification, in which- Figure l is a vertical central section of my invention, taken in the line a: an, Fig. 2; Fig. 2, a horizontal section of the same, taken in the line y y, Fig. l.` i

Similar letters of reference `indicate corresponding parts in the two gures.

The object of this invention is to produce a lantern which will admit of coal-oil and other similar hydrocarbons being used as a burning unduly heated and vaporized, so as to cause an explosion of the lamp. i

To enable those skilled in the art to fully understand and` construct my invention, Lwill proceed to describeit. I

A represents the glass globe or protector of the lantern; B, the metal base; C, the metal top or cap, and D the wire-guards which protect the glass globe. These parts may be constructed in the usual way, and therefore do not require a particular description.

E represents the lamp, which `is provided with twoflat wick-tubes, F F, about parallel with each other and extending upward a suitable distance above the top of the lamp.

G is a jacket, which encompasses the upper part of the lamp E,and is provided with a cap, H,which has a circular opening, a., at its center, through which the tubes F F pass. The jacket G extends down about half the height of the lamp, and it is provided with a flange, b, at its lower end, which projects `outward and downward all around the lamp,

as shown clearly in Fig. l.

`To the lowerend of the lamp E `there is attached a iiange, c, which projects outward and upward all around the lamp, as also shownin Fig. l. The space between the two flanges b c has a series. of vertical plates, d, placed in it radially with the lamp E, and having their inner edges attached to it. The plates d extend thewhole length of the space between the flanges bc, but need not extend out to the edges of the latter. The inner part of the flange b is perforated, as shown at e, all around the lamp E.

` Tothe top'of the lamp E, and between the two wick-tubes F F there is secured a horizontal tube, f, to which a vertical plate, g, is attached, said plate extending up to the tops of the wick-tubes, ora trifle above them, as shown clearly in Fig. 1.

The lamp, whenburning, has its flame supplied with air, which passes up between the flanges b c within theA jacket G, and thence up through the opening a ofthe cap H, around and between the wick-tubes F F tothe flame.

ward, catches the air and prevents a down` ward draft through the lantern, which would have atendency to extinguish the llame. The

plates d prevent a horizontal current of air passing between the flanges b c by a horizontal or swinging movement i of the lantern. These plates also catch the air by such movement of the lantern and cause it to be forced up to the Haine.

The tube f and plate g should beof brass or copper. These parts serve as heat conductors or retainers, and induce a draft of air between the wick-tubes. i They also serve to prevent heat being conducted down tothe burning material within the lamp E, and therebyprevent the explosion of the same.

The lamp may be secured in the lower part of the lantern by any suitable fastening.

Having thus described my invention7 what I claim as new, and desire toseeure by Letters l upper extremities of the Wick-tubes, as herein Patent,- isshown and described.

l. The combination `Ofthetwo Handes b c and plates d With the lamp E, jacket Gb, and' 1an- JOHN H' IRWIN' tern A in the manner herein shown and de- Witnesses: scribed. FRANKLIN HATHEWAY,

2. Having the cap H arranged below the l WILLIAM O. WHEELER. 

